Mass, Enrichment, and Entropy in a Typical Isolated Elliptical Galaxy

Details Mass, Enrichment, and Entropy in a Typical Isolated Elliptical Galaxy Mass, Enrichment, and Entropy in a Typical Isolated Elliptical Galaxy

Oct 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010xmm..prop...31j&link_type=abstract

XMM-Newton Proposal ID #06708701

Computer Science

Galaxies, Galactic Surveys, Ngc 2325

Scientific paper

We propose a 100 ksec XMM observation of the isolated elliptical galaxy NGC2325, a fairly typical galaxy in terms of its X-ray and optical luminosity. Studies of isolated galaxies allow us to investigate the intrinsic properties of the hot gas halos in early-type galaxies without the complicating effects of a cluster or group environment, and we will study in detail the metallicity, entropy, and temperature profiles in this galaxy as indications of the effectiveness of enrichment and feedback processes. In addition, we will shed light on the debate over the dark matter density profiles of ellipticals by uniquely determining the mass profile of the same isolated galaxy using both deep X-ray and optical dynamical measurements.

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